CN100585126C - Control mechanism for the extension units in the longwall face of a mine - Google Patents
Control mechanism for the extension units in the longwall face of a mine Download PDFInfo
- Publication number
- CN100585126C CN100585126C CN200380107227A CN200380107227A CN100585126C CN 100585126 C CN100585126 C CN 100585126C CN 200380107227 A CN200380107227 A CN 200380107227A CN 200380107227 A CN200380107227 A CN 200380107227A CN 100585126 C CN100585126 C CN 100585126C
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- China
- Prior art keywords
- backplate
- controller
- control
- signal
- bus conductor
- Prior art date
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- Expired - Lifetime
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- 239000004020 conductor Substances 0.000 claims description 30
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 11
- 239000003245 coal Substances 0.000 description 11
- 230000004044 response Effects 0.000 description 9
- 238000005065 mining Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
- E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
- E21D23/146—Transmission of signals and commands by cable
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/12—Control, e.g. using remote control
- E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
- E21D23/148—Wireless transmission of signals or commands
Abstract
Disclosed is a control mechanism for controlling the movements of the extension units and driving in a longwall face of a mine. Said control mechanism comprises a plurality of control units, one of which (shield control unit) is topically and functionally assigned to each extension unit. Each shield control unit is provided with a multichannel radio transceiver via which one of the shield control units is in simultaneous transmit mode and receive mode with a decentralized portable operator device in order to transmit test data and status data. The shield control units are programmed in such a way that incoming radio control signals can be converted into functions of the extension unit only if the control signal is provided with the code word allocated to the called shield control unit. Preferably, the shield control units are interlinked by means of two bus lines (58, 59) used for transferring input data to all shield control units. Each shield control unit encompasses an amplifier for regenerating the signals that come in via a bus line.
Description
The present invention relates to a kind of support and control device that is used for controlling mine work plane support unit motion.
Sort controller is for example known by DE10207698.7A1 (TBT2104) and DE19982113.5-24A1 (TBT9805).
In this support and control device, each support unit (being called " backplate (Schilde) " in this application) can be set out or controlled by each control module that corresponds respectively to a backplate (backplate controller) by a central controller, perhaps controls via radio by an operating equipment.On principle, the radio command of being imported by operating equipment is sent to a backplate controller that is equipped with receiving equipment.From this backplate controller, can control adjacent or a plurality of adjacent backplates respectively then.On principle, control signal is sent to all backplate controllers by a shared lead of all backplate controllers.Yet described backplate controller is so programmed, and only makes to make response corresponding to the backplate controller of the code word that sends together with control instruction, and carries out switch order.Other all backplate controllers continue control signal to transmit with code word.When control instruction of input, taken whole lead (bus conductor).
Task of the present invention is to realize a kind of support and control device, wherein can while while transmitted in both directions signal between operating equipment and backplate controller.Find the fault in the backplate controller at an easy rate, and especially can send other signal with control signal.
Its solution is drawn by claim 1.
Obtained following advantage by this design, i.e. digging control on the whole, comprise control to backplate and mining machinery, by operating equipment, preferably realize, and the status data and the survey data that wherein send it back by check can realize control according to assay simultaneously by manual handling equipment.Especially when equipment goes into operation, all backplate control appliances are carried out condition monitoring one by one separately, perhaps try out, and the operator can follow the tracks of the control operation of the exploitation of coal face and bracing or strutting arrangement, and pay close attention to whether true(-)running of support unit.This can't realize without the notice feedback at present.Yet according to the present invention, no longer need operating personnel on the scene, especially treat in the deathtrap of backplate that moves and bracing or strutting arrangement.
In the described embodiment of claim 2, also realized in addition making between operating equipment and the backplate controller, must be very short all the time by the distance that radio is crossed over, and come into plain view, and realize to the transfer of data than backplate controller at a distance by cable, not very sensitive therefore to disturbing.On the other hand, realized the multichannel transmission according to the present invention,, also realized state control simultaneously, thereby the interference in radio communication or the cable transmission is awared immediately the control module of making response for each control signal.So just considered the security requirement in the mine.
In the described embodiment of claim 3, can be complementary by the packing density of cable transmission and the packing density of wireless radio transmission.
Because work plane is very long, there is such danger: promptly from the signal that a backplate controller is transferred to another backplate controller strong decay can take place, to such an extent as to this signal can not receive or make correct explanation by backplate controller, especially central controller at a distance by cable (bus conductor).
The described embodiment of claim 4 according to the present invention, this problem is avoided by the signal that adopts two bus conductors and all overlapping transmissions.
According to the present invention, can irrespectively simultaneously measuring-signal or other status signals be sent to operator or central controller with the input of control signal.For each control signal, can simultaneously and not provide an answer signal equally with having time delay yet, import and/or carry out control instruction by this answer signal.
Embodiments of the invention are described with reference to the accompanying drawings.
Fig. 1: the sectional view of work plane and support unit.
Fig. 2: the schematic diagram of coalcutter and support unit group.
Fig. 3: the schematic configuration diagram of central controller and backplate controller.
Figure 1 illustrates a support unit among the support unit 1-18.Figure 2 illustrates a plurality of support units 1 to 18.Described support unit is arranged along ore bed 20.Ore bed 20 is exploited on digging direction 22 with the cutter sweep in the mining machinery 23,24.Mining machinery is the form of coalcutter 21 in this embodiment.
Coalcutter 21 can be advanced on digging direction 19 by means of a not shown coal cutting cable wire.It has two cutting rollers 23,24 that are provided with differing heights, and rib is carried out milling.The coal of exploiting is loaded on the conveyer belt by coalcutter (being also referred to as " roller installation ").Conveyer belt is made of a chute 25, and one of them armouring conveyer belt moves along the coal face.Coalcutter 21 can be advanced along the coal face.Chute 25 is divided into each unit, although they interconnect, can move relative to each other on digging direction 22.Each unit is connected with a support unit among the support unit 1-18 as power generation arrangement by cylinder piston unit (stepper piston) 29.Each support unit is used for the support works face.Adopted another cylinder piston unit 30, it struts a base plate with respect to a top board for this reason.The end towards ore bed of described top board in its front has a so-called coal crash cushions 48.Here it be one can be at the baffle plate of being dug previously by the rib exploited.Described coal crash cushions must be before coalcutter 21 advances to this high digging.Also adopted the unshowned cylinder piston of another one unit for this reason.Here these function element of each support unit provide as just example.The function element that also has other; Do not need for the understanding of the present invention to mention again and describe these other function element.
For each power generation arrangement, as already mentioned, it is hydraulic cylinder/piston unit.
These cylinder/piston units are operated by valve 44, pilot valve 45.On pilot valve, fixed a valve positioner 40, i.e. shell and be positioned at wherein valve positioner.
In Fig. 2, coalcutter moves right.Therefore the coal crash cushions of support unit 17 must turn back.On the other hand, on the support unit 9 that is positioned at coalcutter 21 back on the direct of travel 19, push ahead by on the rib of exploiting the unit of chute 25.Equally, the support unit 8,7,6,5,4 of back is advanced in the process of advancing on work plane or the quilt rib of exploiting in turn.On these support units, below the coal crash cushions is translated into once more.Support unit 3,2,1 has resetted, and remains on its position, and is close to the right once more up to coalcutter.Control part to above-mentioned motion is irrespectively carried out automatically with the instantaneous position of motion and coalcutter, and a part is manually finished.For this reason, each support unit 1-18 is equipped with a backplate controller 34 respectively.A backplate controller 34 is corresponding with a support unit 1-18 respectively, and is connected with main control valve 44 by the pilot valve 45 of a valve positioner 40 (microprocessor) with the common power generating apparatus of support unit 1,2,3... (to 18) respectively.
Each backplate controller may be used to import data or data is inquired about.Yet on the controller group that a group is made of a plurality of backplate controllers a work plane controller 33 can be set, a central support and control device (master control central controller 50 and/or auxiliary centre controller 51) also can be set on perhaps all backplate controllers, and described central support and control device is connected with the backplate controller.Figure 2 illustrates a kind of such embodiment.
Central controller is made up of master control central controller 50 and auxiliary centre controller 51.
Cable 58 (bus conductor) interconnects all backplate controllers 34.Further input or output supporting order, status data or other data by each backplate controller.By described supporting order, in a specific backplate, carry out specific support function, for example exploit, excavate stride forward, compacting.Described supporting order is received by bus conductor 58 by all backplate controllers 34, and further transmits.Supporting order/control instruction can manually offer master control central controller 50 or auxiliary centre controller 51, work plane controller 33, and one group of backplate controller is distributed in described instruction respectively, perhaps carries out by operating equipment 37.The supporting order of being imported is sent to next backplate controller from master control central controller 50 or auxiliary centre controller 51 or work plane controller 33 or operating equipment 37.From this backplate controller, described supporting order arrives every other backplate controller 34 by bus conductor 58 then.Yet by a kind of predetermined coding, has only one or have only one group of backplate controller to be activated among the backplate controller 1-18, to carry out corresponding support function.The backplate controller that is activated then is converted to the valve control instruction with the supporting order that receives, and is used to control control valve or main control valve corresponding to relevant support unit.
The implementation that automatically performs described function and function for example is described in DE-A119546427.3.
The backplate controller of making response can provide status data and other survey data of the function element (for example steam-cylinder piston unit) of making response simultaneously.These data are sent out by bus conductor 58 then, and send back the equipment of carrying out this instruction at least by corresponding next backplate controller, i.e. master control central controller 50 or auxiliary centre controller 51 or work plane controller 33 or operating equipment 37.Like this, whether the operating personnel of input control order can check relevant function to be performed immediately.
Can instruct by input inquiry in an identical manner, and be sent to specific backplate controller by coding.In this way, can carry out condition monitoring to whole instruction control unit and backplate, wherein, can need not to consider interference problem because the space length of dedicated radio link is short by central control station.In order manually to instruct input, adopted a control appliance 37 as mentioned above, it is realized as manual equipment, and is operated by the operator.In order to import instruction, the operator may stand in one segment distance place, work plane outside, perhaps at least away from current digging place.
Described manual equipment communicates by radio and radio receiver 38, and described radio receiver is arranged in each backplate controller.The nearest backplate controller of its middle distance operating equipment receives the strongest radio signal.Correspondingly, this backplate controller continues the signal that receives to transmit by bus conductor 58, thereby can make response to corresponding backplate controller by code word.But simultaneously also by a channel in the dedicated radio link with the answer signal of corresponding backplate controller, preferably also a signal that has reflected that state and state change is sent to each radio transceiver by bus conductor 58.The strongest radio signal that can simultaneously next backplate controller be allowed is sent to operating equipment like this.Operating personnel can obtain direct assay.
Because manual equipment is respectively by a backplate controller and every other backplate controller, and the dedicated radio link between master control controller, pilot controller and the work plane controller is that multichannel connects, manual equipment can obtain all data communication of work plane simultaneously, thereby has avoided control instruction to clash.
Rectangular manual equipment has operated key on a face (chain of command).Code can be input in the support and control device that to operate respectively (among backplate controller 34.1, the 34.2...) by these operated keys, and can send supporting order, to carry out desirable function or desirable functional sequence (for example exploitation or excavation stride forward).For example the antenna 39 with manual equipment is used for wireless transmission.
When the operator with manual equipment when its longitudinal axis Rotate 180 is spent, he will see the chain of command of manual equipment.It is provided with two diodes, a display and other button.The operator can be illuminated this two diodes with his crown mine lamp.Have only when he for example opens a diode with finger, manual equipment could execution control function.In order to control the code of the support unit that operator's input will be controlled.Like this, manual equipment is connected with next backplate controller by radio, as described in the front is when the transmission of control signals.It forms and being connected of the backplate controller of replying by code word by radio and by cable 58,59 thus.Can directly talk with according to the present invention.Operating personnel can call specific function or mode of operation by means of a button.In the backplate controller, deposit a program for this reason in, utilize this program, can function, duty and the functional sequence of each backplate (support unit) be called, or the order that obtains calling.Received then data side by side are transferred to adjacent backplate controller basically by cable 58,59, and from one of them backplate controller by wireless radio transmission to manual equipment, and be presented on the display.In this way, the operator can determine thus whether a specific support unit has ability to work completely, and perhaps whether function element or control element need to safeguard or change.
In this way can simulated trial operation.But also can actually try out, wherein the operator is from position that he stood, reply each backplate controller according to order by the control station point of manual equipment, and carries out one or more functions.Change by sending back state and state simultaneously, can check this work plane support unit whether to possess service ability, and whether can move.
Like this, just can realize safe, the noiseless and reliable operation of coalcutter and support unit with operating cost seldom.As already explained, backplate controller 34 is connected by cable 58 each other, and this cable only has two heart yearns in current embodiment, is used for serial transmission code word and supporting order respectively.Have only code word those backplate controller 34/ support units consistent of its storage just to make response with the code word of transmission.Cable 58 is two-core cables, and it extends to next backplate controller with the form of bus conductor from a backplate controller 34, and by therebetween backplate controller 34 master control central controller 50 and auxiliary centre controller 51 is interconnected.
According to the present invention, except at present used single two-core cable 58, also can lay two two-core cables 59 concurrently, be called parallel bus in this application.Cable 58,59 is also referred to as bus conductor in this application.
Cable distribution principle in each backplate controller 34 is shown in Figure 3.There is shown two the backplate controllers 34.1 and 34.2 in a plurality of backplate controllers.Described backplate controller links to each other with auxiliary centre controller 51 with master control central controller 50 with 59 by bus conductor 58.Bus conductor 58 has two heart yearns 58.1 and 58.2; Bus conductor 59 has two heart yearns 59.1 and 59.2.
Two bus conductors always have four heart yearns, and the input element 52 of backplate controller 34.1,34.2... is coupled together.Whether from this input element, the signal of arrival is processed in the backplate controller, promptly at first check the code word that sends together with that stored, consistent corresponding to the code word of each backplate controller.As long as the signal that is transmitted is a control signal, just handles accordingly, and further be forwarded to the respective functional elements of previous described backplate.
Each bus conductor heart yearn 58.2 or 59.2 is caused a switch element 53 respectively then.Corresponding line leaves switch element 53 via output, is directed to the respective switch element 53 of adjacent backplate controller 34.2 then.In switch element 53, these two heart yearns 58.2 and 59.2 side by side or are individually separated.
Switch 53 and two switch element are with common mode closure, to realize conducting.Yet bus conductor is separated when occurring disturbing.Be convenient to trouble shoot so on the one hand.For this reason, the switch element that will be positioned at the backplate controller in right side or left side by a control device (master control central controller, auxiliary centre controller, manual equipment, work plane controller or backplate controller) is opened individually or in order, then input control signal.Immediately control signal is replied owing to make the backplate controller of response, can determine that fault has taken place that backplate controller in the backplate control module.Can under failure condition, realize on the other hand separating, isolate with the backplate controller that will break down, and pull down from one or more bus conductor.Like this, still can control, can realize the fault eliminating, and work plane is stopped work other backplate controller.
In amplifier element 54, the data signal that arrives is upgraded.Can determine in amplifier element thus whether the signal that arrives has exceeded a predetermined especially threshold value.If exceeded this threshold value, then produce the signal that intensity increases at output, preferably have initial intensity, thereby guaranteed that signal conducts by all backplate controllers.Especially provide such amplifier, because control signal, measuring-signal etc. are transmitted with digital form.
Like this, also can be in underground mining desired position signal and direction signal and control data be carried out reliable, glitch-free wireless transmission.Under the very long situation of work plane, also can handle the support and control device reliably by radio.For this reason, control device has following characteristics: signal only is passed to control device nearest on the space by RTTY, and by cable with the form after upgrading and with required intensity by the control device that further is forwarded to other.Can carry out reliable analytical calculation to the support unit that will make response respectively by shared computing capability.
, control instruction can be transmitted by bus conductor 58 or 59 freely respectively by a central controller 50,51 or when being input to control instruction in the system when only by input unit 37 (Fig. 2).Wherein control instruction is conducted by each backplate controller 34.1,34.2... in the manner described.The code word of having only its storage is made response with the corresponding to backplate controller of code word that provides with control signal.The reception of corresponding control signal and/or carry out and can reply by an answer signal because it be provided for two bus conductors 58 or 59 and dedicated radio link in one of.Reply and do not carry out with having time delay immediately, thereby, promptly, also can realize control immediately at master control central controller 50, auxiliary centre controller 51 or control device 37 places at the input unit place.Control signal corresponding further is sent to valve positioner 40 (Fig. 1).Like this, the adjustment electromagnet of pilot valve 45 is energized, and drives the corresponding main control valve 44 of power generating apparatus 30.Now also can send back the signal of pressure sensor by bus conductor, described pressure sensor is provided with in order to control and monitor each power generating apparatus and/or valve.
Reference numeral:
1-18. support unit 1 to 18
19. cut direction 19
20. coal seam 20
21. mining machinery coalcutter 21
22. digging direction 22
23. cut direction cutting roller 23,24
24. cutter sweep cutting roller
25. conveyer belt, chute, unit 25
26. base plate
27. top board
28. take turns 28
29. the cylinder piston unit, stepper piston, power generation arrangement 29
30. the cylinder piston unit, power generation arrangement
31. computer, microprocessor 31
32. radio receiver 32
33. the work plane controller, central support and control device, work plane control device
34. control device 34, backplate controller, backplate control device, support and control device
35. antenna 35
36. receiver 36
37. control device, manual equipment, operating equipment
38. radio receiver
39. the antenna of manual equipment
40. valve positioner, microprocessor, control device 40
41.
42.
44. control valve 44
45. pilot valve, control valve 45
46.
47. adjust electromagnet 47
48. coal crash cushions 48
50. master control central controller
51. auxiliary centre controller
52. input element
53. switch element
54. amplifier element upgrades
58. cable, bus conductor
58.1 heart yearn
58.2 heart yearn
59. cable, bus conductor, parallel bus
59.1 heart yearn
59.2 heart yearn
Claims (2)
1. be used for controlling the support and control device of mine work plane support unit motion and driving,
Have a central controller, and
Have a plurality of control modules, each support unit respectively on the place and function on corresponding to a control module in these control modules, i.e. backplate controller;
Described backplate controller is connected by a bus conductor (58) each other, is used for transfer of data is arrived all backplate controllers, and is programmed so that:
All signals that transmit in a backplate controller place are forwarded to all other backplate controller, and
The control signal of being transmitted only with corresponding that backplate controller of the code word that has taken control signal equally in just can be converted into the function of respective support unit,
The operating means of backplate controller and dispersion, i.e. operating equipment (37) wireless connections are used for input control order and send it back control data,
It is characterized in that, comprise a multi channel wireless set that is used for the operation that sends simultaneously and receive in each backplate controller,
By second bus conductor of same type, promptly parallel bus (59) is connected described backplate controller each other,
Form function between each wireless set and the operating equipment (37) and contact, thereby can realize:
Send on a bus conductor at each the control signal in other backplate controller, and
On another root bus conductor, immediately and do not send it back an answer signal, be used for the reception and the execution of corresponding control signal are replied with having time delay,
And for whole instruction control unit and backplate are carried out condition monitoring, instruct, and be sent to specific backplate controller by coding by one of described bus conductor input inquiry.
2. support and control device as claimed in claim 1 is characterized in that, each backplate controller has an amplifier, is used for the not corresponding signal of at least one by two bus conductors that transmit, its code word and this backplate controller is amplified.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10261139 | 2002-12-21 | ||
| DE10261139.4 | 2002-12-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1729349A CN1729349A (en) | 2006-02-01 |
| CN100585126C true CN100585126C (en) | 2010-01-27 |
Family
ID=32667550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200380107227A Expired - Lifetime CN100585126C (en) | 2002-12-21 | 2003-12-11 | Control mechanism for the extension units in the longwall face of a mine |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7455368B2 (en) |
| CN (1) | CN100585126C (en) |
| AU (1) | AU2003291958A1 (en) |
| DE (1) | DE10393865B4 (en) |
| PL (1) | PL202666B1 (en) |
| RU (1) | RU2334108C2 (en) |
| WO (1) | WO2004059129A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2439664A (en) * | 2005-03-17 | 2008-01-02 | Tiefenbach Control Sys Gmbh | Extraction controller for coal mining |
| US7613157B2 (en) * | 2005-08-30 | 2009-11-03 | Interdigital Technology Corporation | Wireless communication method and apparatus for processing enhanced uplink scheduling grants |
| DE102009017971A1 (en) * | 2008-04-21 | 2009-12-10 | Tiefenbach Control Systems Gmbh | screen |
| DE102011017439A1 (en) * | 2010-07-30 | 2012-02-23 | Tiefenbach Control Systems Gmbh | Safety device at mobile mining equipment in a longwall of underground mining |
| CN101963791B (en) * | 2010-09-01 | 2012-06-06 | 广州日滨科技发展有限公司 | Method for performing software upgrading on controllers of hydraulic bracket electrohydraulic control system |
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|---|---|---|---|---|
| US3406342A (en) * | 1965-01-21 | 1968-10-15 | Hubner Rolf | Safety monitoring and acknowledgment system for subterranean structures using radio relays |
| GB2167924A (en) * | 1984-12-01 | 1986-06-04 | Eickhoff Geb | Arrangement for controlling a powered support system used in underground mining |
| US5062033A (en) * | 1987-05-09 | 1991-10-29 | Gewerkschaft Eisenhutte Westfalia Gmbh | Electro-hydraulic control system for a mineral mining installation |
| GB2265652A (en) * | 1992-04-04 | 1993-10-06 | Meco Electronics Ltd | Mine communication system |
| CN2420422Y (en) * | 2000-02-20 | 2001-02-21 | 兖矿集团有限公司 | Automatic controlled top coal working rack |
| DE10207698B4 (en) * | 2001-02-24 | 2008-11-13 | Tiefenbach Control Systems Gmbh | Longwall control for longwall construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1576317A (en) * | 1976-08-20 | 1980-10-08 | Dobson Park Ind | Control of self-advancing mine roof supports |
| DE3207517C2 (en) * | 1982-03-03 | 1985-09-05 | Gebr. Eickhoff Maschinenfabrik U. Eisengiesserei Mbh, 4630 Bochum | Control for support frames for underground mining |
| US5029943A (en) * | 1990-05-17 | 1991-07-09 | Gullick Dobson Limited | Apparatus for transmitting data |
| DE19546427B4 (en) | 1995-02-02 | 2004-03-11 | Tiefenbach Bergbautechnik Gmbh | expand control |
| WO2000023690A1 (en) * | 1998-10-21 | 2000-04-27 | Tiefenbach Bergbautechnik Gmbh | Control system for longwall face alignment |
| DE10018597B4 (en) * | 1999-04-16 | 2004-02-05 | Tiefenbach Bergbautechnik Gmbh | Control for longwall construction |
| DE19925721B4 (en) * | 1999-06-07 | 2015-11-05 | Caterpillar Global Mining Europe Gmbh | Method and device for the remote-controlled actuation of a control device |
-
2003
- 2003-12-11 WO PCT/DE2003/004083 patent/WO2004059129A1/en active Application Filing
- 2003-12-11 US US10/538,828 patent/US7455368B2/en not_active Expired - Lifetime
- 2003-12-11 CN CN200380107227A patent/CN100585126C/en not_active Expired - Lifetime
- 2003-12-11 AU AU2003291958A patent/AU2003291958A1/en not_active Abandoned
- 2003-12-11 PL PL377216A patent/PL202666B1/en unknown
- 2003-12-11 DE DE10393865.6T patent/DE10393865B4/en not_active Expired - Lifetime
- 2003-12-11 RU RU2005123044/03A patent/RU2334108C2/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3406342A (en) * | 1965-01-21 | 1968-10-15 | Hubner Rolf | Safety monitoring and acknowledgment system for subterranean structures using radio relays |
| GB2167924A (en) * | 1984-12-01 | 1986-06-04 | Eickhoff Geb | Arrangement for controlling a powered support system used in underground mining |
| US5062033A (en) * | 1987-05-09 | 1991-10-29 | Gewerkschaft Eisenhutte Westfalia Gmbh | Electro-hydraulic control system for a mineral mining installation |
| GB2265652A (en) * | 1992-04-04 | 1993-10-06 | Meco Electronics Ltd | Mine communication system |
| CN2420422Y (en) * | 2000-02-20 | 2001-02-21 | 兖矿集团有限公司 | Automatic controlled top coal working rack |
| DE10207698B4 (en) * | 2001-02-24 | 2008-11-13 | Tiefenbach Control Systems Gmbh | Longwall control for longwall construction |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003291958A1 (en) | 2004-07-22 |
| US7455368B2 (en) | 2008-11-25 |
| WO2004059129A1 (en) | 2004-07-15 |
| PL377216A1 (en) | 2006-01-23 |
| RU2005123044A (en) | 2006-07-27 |
| DE10393865B4 (en) | 2016-07-21 |
| PL202666B1 (en) | 2009-07-31 |
| US20060158016A1 (en) | 2006-07-20 |
| DE10393865D2 (en) | 2005-08-18 |
| CN1729349A (en) | 2006-02-01 |
| RU2334108C2 (en) | 2008-09-20 |
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